Strip perforating and cutting-off machine



Sept. 5, 1939. A. DRUCKER El AL 2,171,785

STRIP PERFORATING AND CUTTING OFF MACHINE Filed March 20, 1939 3Sheets-Sheet l JOSEPH GLUBKMAN l INVENTORS T :s M.

A TTORNEY.

ABRAHAM DRUCKER Sept. 5, 1939. A. DRUCKER El AL 2,171,735

STRIP PERFORATING AND CUTTING OFF MACHINE Filed March 20, 1939 3Sheets-Sheet 2 I I I I l I I l JOSEPH GLUGKMAN IN'VEN TOR S Bl WM ATTORNEY.-

ABRAHAM DRUCKER Sept. 5, 1939.

A. DRUCKER ET AL STRIP PERFORATING AND CUTTING OFF MACHINE Filed March20, 1939 3 Sheets-Sheet 3 H I a:

ABRAHAM DRUCKER JOSE PH GLUGKMAN INVEN TOR.

A TTORIV E Y.-

Patented Sept. 5, 1939 UNITED STATES EPAT ENT oFFicE STRIP PERFORATINGAND CUTTING-OFF MACHINE Application March 20,

-6 Claims.

This invention relates to a bulk handling and measuring and perforatingand cutting oif machine designed'to perforate to pattern form and cut aplurality of articles to desired length in 5 a single operation from aplurality of superposed strips of material.

An object of this invention is to provide a perforating and cutting offmachine designed to form elongated prong slots in belt strip materialand simultaneously form a substantially tshaped cut on the severedportions of the belt strip material and a right-angular cut on theremainder portions of the belt strip material.

Another object of this invention is to provide a unitary die set havinga punch holder plate resiliently supported in a raised position for downward and upward motion, the said plate having a tubular punch and twocutting off dies depending therefrom in linearly aligned position.

Another object of this invention is to provide stripper devicesoperating in conjunction with said punching and cutting ofi dies.

Another object of this invention is to provide a gauge having twoparallel vertical walls and means for moving said vertical wallsinequally spaced relation from the centrally aligned linear position ofthe said punch and cutting off dies.

Another object of this invention is to provide a reel having ahorizontal axis adapted for support- 30 ing a plurality of belt striprolls in horizontally spaced relation and to provide means for stackingsaid strip material in vertical alignment with said gauge and dies.

With the above and other objects in view, the invention will behereinafter more particularly described, and the combination andarrangement of parts will be shown in the accompanying drawings andpointed out in the claims which form part of this specification.

Reference will now be had to the drawings, wherein like numerals ofreference designate corresponding parts throughout the several views, inwhich:

Figure l is a side elevation of our strip perforating and cutting offmachine.

Figure 2 is a top plan view of the machine.

Figure 3 is a fractional plan view of a strip of belt material showing aperforated and out 01f belt, a type of work that the device of ourinvention is capable of producing.

Figure 4 is a side elevation of the die-set shown in Figures 1 and 2.

Figure 5 is a bottom plan view of the die-set and showingparallel-motion mechanism for mov- 1939, Serial No. 263,002

ing two gauge walls in equally spaced relation from the linearly alignedaxis of the dies.

In the illustrated embodiment of the invention, there has been shown afoot lever operated machine comprising a work support 19 from whichextends upwardly a plunger-housing ll. Slidably' mounted for verticalreciprocations in the plunger-housing i l is a plunger l2 which isactuated by a foot lever l3.

Fixedly mounted on the work support it is a' unitary die-set I l havingits punch holder plate l5 preferably in slightly spaced relation fromthe bottom surface of the plunger [2.

The plate i5 is slidably mounted on vertical guide pins i 8 fixed in thedie-set base IT and supported in raised position by coil springs iii.

A tubular punch l9 preferably designed to perforate belt strip material2i with an elongated aperture or prong slot 2!, shown in Figure 3, hasbeen fastened in an upright cutting position to the lower surface of thepunch holder plate iii.

As is well known in the art, the tubular punch it has a side opening 22at its upper end through which the material cut by the punch I9 isdischarged therefrom. The punch IB is provided at opposite ends withstripper pins 23 mounted for vertical sliding motion in the plate l5 andresiliently downpressed by coil springs 24.

A duplex cutting 01f die 25 having a straight cutting off die 26 and asubstantially -shapedcutting off die 21 has been fastened in an uprightcutting position to the lowersurface of the punch holder plate I5, thesaid apex being positioned in alignment with the axis of the tubularpunch iii. For the purpose of adjusting the distance from the straightdie 26 to the punch [9 we have provided a head-piece 23 on the duplexdie 25, the said headpiece having an upper extension 29 preferably ofrectangular cross section and which is slidably mounted in a slot 39extending through =46 the punch holder plate l5. This spacing adjustmentbetween the duplex die 25 and the punch l El makes it possible to varythe distance 35 shown in Figure 3 to permit the use of the machine forbelts adapted for use with various styles and sizes -45 of buckles.

A bolt 36 slidable in a slot 31 serves for locking the duplex die 25 inany desired set position. The duplex die 25 is provided with a stripperplate 38 mounted for vertical sliding 1110- 5C- tion between the cuttingoff dies25 and 21. The stripper plate 33 is integrally connected toguide pins 39 mounted for vertical sliding motion in the head-piece 28and resiliently downpressed by coil springs 34. 55

A self-centering gauge 40 having upright side walls 4!, 42 has beenmounted on the dieset base I? with the said side walls in parallelalignment with the aligned cutting members I9, 25 and 21.

The side walls 4| and 42 are respectively secured to slide blocks 45,45, having apertures at their lower elevations. The plates or side walls4! and 42 are slidably mounted by engagement of the said apertures withelongated guide pins 43, 43. The pins 43 are fixed to a bar 44 which isintegral with the die-set base l1.

A lever 46 has been fulcrumed at a point 41 to the bar 44 intermediatethe guide pins 43. Links 48, 48 of equal length have been pivotallymounted at one of their ends to the lever 46 at points 49, 49equidistant from the fulcrum 41. The other ends of the links 48 havebeen pivotally mounted to the slide blocks 45 at points 50, 5|!equidistant from the guide pins 43. It will be seen that motion of thelever 45 will cause motion of the side walls 4| and 42 of the gauge 45to or from the line of alignment ofthe dies l9 and 25 and that when astrip of material 25 is placed in the gage 49, movement of the lever 46will automatically move said material into central or axial alignmentwith the said dies. A horizontal plate I'l' fastened to the bar 44 formsa continuation of the die-set base H. The plate I1 is positioned inspaced relation from the base I! to permit motion therebetween of theslide blocks 45.

It is to be noted that lever 46 of the self-centering gauge 40, servingas the means for actuating the mechanism, is designed to be positionedbeyond the line of alinement of the dies and that when the stripmaterial is narrow, the said mechanism becomes self-locking.

A reel 55 having a horizontal axis 56 on which side plates 51, 51 areslidably mounted has been secured at one end of an operating table 58.As shown in Figure 2, four rolls of belt strip material 20 have beenmounted on the axis 56 in parallel side-by-side relation and so that allthe rolls may be unwound simultaneously and equally.

A stacking device 60 has been secured to the operating table 58intermediate the reel 55 and the gauge 40. The stacking device 60comprises a right-angular bracket 6! which is fixed to the table 58 suchas by screws 62 and having a plurality of spaced guide pins 63 extendingtherefrom in spaced relation and preferably positioned in a singlevertical plane. The stacking device has been positioned in centralalignment with the gauge 40 and with the cutting dies [9 and 25. A plate84 slidably mounted on the pins 63 is spaced from the bracket 6| adistance corresponding to the width of the strip material 20.

As best shown in Figure 2, the rolls of strip material 20 are of thesame width and are unwound in spaced vertical planes and are broughtinto superposed relation by threading said strips individually betweenthe stacking pins 63.

A graduated scale 65 has been fastened to the operating table 58 in linewith the superposed strips 20. A stop 66 slidably mounted on the scale65 carries a screw 61 by means of which the stop may be adjusted anydesired distance from the apex of the V-shaped cutting off die 27. Theoperator may thus set the stop 66 to produce measured out lengths suchas belts of the desired overall dimension between the right-angular end68 and the V-shaped end 69, Figure 3.

While we have illustrated our strip perforating and cutting off machineas utilizing a tubular punch l9 and a duplex cutting off die 25especially adapted for forming elongated prong slots in belt stripmaterial and simultaneously forming a V-shaped cut on the severedportions of the belt strip material and a right-angular cut on theremainder portions of the belt strip material, it is obvious that we mayemploy dies or tools which will perform other functions in stripmaterial. We do not, therefore, limit ourselves to the type of die-setshown in the drawings, as we contemplate in connection with our stripfabricating ma chine the manufacture of quite a number of uni tarydie-sets designed for performing different functions but beinginterchangeable and adapted to be mounted on the operating table 58 inoperating alignment with the reel 55 and the vertical stacking device60. The die-set, best shown in Figure 4, is resiliently supported inraised position for simultaneous movement to and from the base and maybe actuated by a foot press as shown, or by a hand press, etc.

It is to be noted that the die-set base comprises two sections l1 and I1positioned in one horizontal plane, the said sections being integrallyconnected by means of a narrow connecting bar corresponding to the widthof the narrowest strip material to be fabricated. Also that the verticalwalls 4| and 42 of the self-centering gauge 40 are actuated by mechanismpositioned below the upper surface of the said die-set base, whereby theentire upper surface of the die-set base is unobstructed throughout itsentire length and thus permitting passage thereover of elongated stripmaterial at all times.

The self-centering gauge 40 serves to automatically center belts ofvarious widths such as from three-eighties of an inch to one inch inwidth, etc. A self-centering gauge 40 of the same structure as the gauge40 may be used to center the belts or pliable strip material to alignsaid material with the dies at opposite ends of the dies.

The bottom leg of the bracket 6! has slots 15 through which the screws62 pass and by means of which the bracketfil and the entire stackingdevice 60 may be adjusted in accurate alignment with the dies.

We claim:

1. An apparatus for the bulk handling and measuring and punching andcutting off belts, comprising a work supporting base, a plurality ofaligned dies supported for movement to and from said base, aself-centering gauge adapted for receiving belt strip material insuperposed relation and for aligning said strip material in centralrelation with said dies, a reel adapted for supporting a plurality ofbelt strip rolls in direct side by side horizontal relation on a commonaxis, a stacking device positioned intermediate said gauge and said reelfor stacking said horizontally positioned belt strip material invertically superposed relation, a graduated scale in alignment with saidsuperposed strips and having stop means slidably mounted thereon tomeasure off required lengths to be cut, means for actuating said diesand means for stripping said out belts from said dies.

2. An apparatus for the bulk handling and measuring and punching andcutting olf belts, comprising a work supporting base, a plurality ofaligned dies supported for movement to and from said base, aself-centering gauge having upright side walls adapted for receiving aplurality of belt strips in superposed relation and for aligning saidstrip material in central relation with said dies, a reel adapted forsupporting a plurality of belt strip rolls in direct side by sidehorizontal relation on a comomn axis, a stacking device positionedintermediate said gauge and said reel for stacking said horizontallypositioned belt strip material in vertically superposed relation, agraduated scale in alignment with said superposed strips and having stopmeans slidably mounted thereon to measure ofi required lengths to becut, means for actuating said dies and means for stripping said outbelts from said dies.

3. An apparatus for the bulk handling and measuring and punching andcutting 01f belts, comprising a work supporting base, a prong slotforming die and a right-angular cutting die and a V-shaped cutting diemounted in alinement in a punch holder and being supported for movementto and from said base, a self-centering gauge having upright side wallsadapted for receiving a plurality of belt strips in superposed relationand for aligning said strip material in central relation with said dies,a reel adapted for supporting a plurality of belt strip rolls in directside by side horizontal relation on a common axis, a stacking devicepositioned intermediate said gauge and said reel for stacking saidhorizontally positioned belt strip material in vertically superposedrelation, a graduated scale in alignment with said superposed strips andhaving stop means slidably mounted thereon to measure oiT requiredlengths to be cut, means for actuating said dies and means for strippingsaid out belts from said dies.

4. An apparatus for the bulk handling and measuring and punching andcutting off belts, comprising a work supporting base, a prong slotforming die and a right-angular cutting die and a V-shaped cutting diemounted in alinement in a punch holder and being resiliently supportedin raised position for simultaneous movement to and from said base, aself-centering gauge having upright side walls adapted for receiving aplurality of belt strips in superposed relation and for aligning saidstrip material in central relation with said dies, a reel adapted forsupporting a plurality of belt strip rolls in direct side by sidehorizontal relation on a common axis, a stacking device positionedintermediate said gauge and said reel for stacking said belt stripmaterial in vertically superposed relation, a graduated scale inalinement with said superposed strips and having stop means slidablymounted thereon to measure off required lengths to be cut, means foractuating said dies and means for stripping said out belts from saiddies.

5. An apparatus for the bulk handling and measuring and punching andcutting off belts,

comprising a die-set having a work supporting base, a prong slot formingdie and a right-angular cutting die and a V-shaped cutting die mountedin alinement in a holding plate and being resiliently supported inraised position for simultaneous movement to and from said base, aself-centering gauge having upright side walls spaced apart and beingadapted for receiving a plurality of belt strips in superposed relationand for automatically aligning said strip material in central relationwith said dies, a reel having side plates slidably mounted on a spindleand being thereby adapted for supporting a plurality of belt strip rollsin direct side by side horizontal relation on said spindle, a stackingdevice positioned intermediate said gauge and said reel for individuallystacking said belt strip material in vertically superposed relation, agraduated scale in alinement with said superposed strips and having stopmeans slidably mounted thereon to measure ofi required lengths to becut, means for actuating said dies and means for stripping said outbelts from said dies.

6. An apparatus for the bulk handling and measuring and punching andcutting off strip material, comprising a die-set having a worksupporting base, a plurality of aligned dies mounted in a holding plateand being resiliently supported in raised position for simultaneousmovement to and from said base, a self-centering gauge having uprightside walls spaced apart and being adapted for receiving a plurality ofstrips of material in superposed relation and for automatically aligningsaid strip material in central relation with said dies, a reel havingside plates sildably mounted on a spindle and being thereby adapted forsupporting a plurality of strip material rolls in direct side by sidehorizontal relation on said spindle, a stacking device having aplurality of spaced guide pins and being positioned intermediate saidgauge and said reel for individually stacking said strip material invertically superposed relation, a graduated scale in alinement with saidsuperposed strips and having stop means slidably mounted thereon tomeasure ofi required lengths to be cut, means for actuating said diesand means for stripping said out strip material from said dies.

ABRAHAM DRUCKER. JOSEPH GLUCKMAN.

